These are not just roommate foibles, they're practically something out of the first part of a horror movie. Pulling food out of your hand? Oh, no. Putting up a chart, like you were a preschooler getting gold stars? How much more patronizing could one be?
Merry Miss Martin is right - you need to sit them down right now, and tell them that you will not put up with this any more. If they insist on continuing, then living arrangements must change. While they're mulling it over, I'd mention that the next time one of them touches me without my permission, I'm filing assault charges. Maybe that would sink in.
And I agree with Mechtilde. "How DARE you!" is sanctified even by Miss Manners herself when people treat others in a way that they never, ever should dare. This is organized bullying, and you need to start protecting yourself from them.